I'm trying to create a paginated UIScrollView within a view that only scrolls horizontally and is populated by labels.
There are 4 labels and each label shows a string derived from a NSDate, with each one being linked to a PageControl to show which page the user is on.
I'm having a little trouble trying to figure this out based on sample code and other answers.
If I've already dragged out the dimensions on IB, do I still need to specify the frame and such?
Do I then have to create views with labels on them? Or can I simply create labels and populate the UIScrollView?
Is there any way to get the background of the UIScrollView transparent?
You can add UILabels directly to the scroll view as they are a subclass of UIView. If you have already specified the size and position of a view in IB, you do not need to do it again programmatically, although you may. myScrollView.backgroundColor = [UIColor clearColor]; will make your UIScrollView transparent.
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I am writing an application for an event my organization is hosting using Swift. I have an image with the floor layout and want to add buttons to select locations (such as bathrooms, entrances, exits, emergency sections, etc) so that people can click them and information about the location pops up.
I currently have an imageview with the floor layout within a scrollview to allow the user to zoom in and out of the image. When I try to add buttons to the scrollview they don't stay relative to the image when zooming in and out, nor do their size change. I have tried adding constraints on to make the location stay the same when zooming in and out.
It also won't let me relocate the button on the storyboard to be a subview of the imageview. Looking up similar solutions says to add the button programmatically as a subview of the imageview but then it'd be really hard to put the 100+ buttons in the right location. Any suggestions as to how to go about this?
you have no other choice instead of adding by code.. because from code you can add as subview of image view , whereas Storyboard wont add buttons as subviews of imageView, but it will add buttons as subview of Scroll View
HI FRIENDS..
I use a scroll view and a label now i want that when i scroll that , label also scroll with that and set to next location , i set paging enable = YES , so i want that there are 5 images and when i did scrolling the label i set is also move and show in other position.
thanks
To scroll a UILabel (or anything for that matter) WITH a UIScrollView, simply add the label to the UIScrollView.
You can easily do this in Interface Builder by the obvious methods.
You can also do this programmatically by utilizing the addSubview: method.
You can do one thing you change frame of label when you scroll in delegate method of scrollview or you can also make 5 same label in all 5 pages.
Good Luck
Well if you have added a scrollview on top of a uiview you can add that label on the view and then bring it to front. then you dont have to worry about changing frame of the uilabel as it will be always on top of the scrollview and at the same position and also you can change the text of that label when the user scrolls in pagecontrol value changed method.
In my UIViewController that I use for my UIPopoverController, I have a label on top, a segmented control, and then a UITableView below it. When I created my .xib for the content view, I put in a table, and centered the label and segmented control within the .xib.
When I present the popover, I do not want it taking the whole screen. I use about (800,700) points to display the popover, but then the labels do not look right. They are not centered within the popover since the popover is now smaller than the .xib. What I did was move the label and segmented control to the left to make it centered in IB. That doesn't seem the best and future proof way of doing it. I was hoping I could do something programatically by taking the width size and dividing by 2 or something and centering based on that. Any advice? Thanks.
There are a couple of options:
Check out the documentation for the popoverContentSize property on the UIPopoverController, you should set it to be the size of the XIB that provides the content (so the XIB and popover both have the same size/contentSize, essentially).
Set the autoresizing masks on the subviews in the XIB so that they lay themselves out correctly dependant on the size of the XIB. To center them within their parent view you do NOT want the left and right mask setting (they should both be deselected in Interface Builder). This guide covers centering subviews: http://www.techotopia.com/index.php/IPhone_Rotation,_View_Resizing_and_Layout_Handling
What I am trying to do is to present an image at the top of the view and beneath it to show the details of it.
By now I am using a UITableView and a UIImageView. The UIImageView is at the top of the View and the UITableView beneath the UIImageView. In the UIImageView I load an image and I want to let the user to pan/zoom it. In the UITableView I show in sections the details of the image. Everything works ok, but when I enable zooming in the UIImageView the image covers parts of the tableView. Moreover, I cannot scroll anymore.
What is the correct combiantion of views for achieving the above requirements?
Instead of the UIImageView I'd use a UIScrollView with the UIImageView embedded in it, this will allow you to setup pan/zoom within whatever view size you want.
I am currently working on an application for a client, and they have made an odd request. The request involves putting a custom image as the indicator for the scrollview. I am not even sure if this is possible but if it is can you please let me know how one would go about doing that.
Thanks
UIScrollView streches a small, semi-transparent circle image to generate its scrollbars. You can find this image as the first subview of a UIScrollView:
UIImageView *circle = [scrollView.subviews objectAtIndex:0];
However, as I said this image is stretched, and as far as I can tell, only the alpha values are considered when drawing the scroll bars.
So for example if you're only interested in changing the top/bottom ends of the scroll bar, you can try to change this image. However, I doubt you'll be able to do anything interesting.
A possible solution that comes to mind, and this is only a theory, is to add a custom, transparent UIView on top of a UIScrollView. Then you can hide the default scroll bar (by using showsHorizontalScrollIndicator and showsVerticalScrollIndicator), pass the necessary touch events to the UIScrollView to scroll the content, and draw the scrollbars in your custom view.